[PT Run] Refactoring: combined all NativeMethods.cs files for plugins… (#15807)

* [PT Run] Refactoring: combined all NativeMethods.cs files for plugins into Wox.Plugin/Common/Win32/

* Fixed spell check

* [PT Run] Changed NativeMethods.Helpers to Win32Helpers (seperate class) to not conflict with Microsoft.PowerToys.Settings.UI.Library.Helpers

* [PT Run] Renamed Constants.cs to ConstantsAndStructs.cs and moved all of them from NativeMethods.cs

* [PT Run] Merged ConstantsAndStructs.cs into NativeMethods.cs and renamed Constants to Win32Constants to avoid conflicting

* [PT Run] Added missing summaries + fixed missed refactored method

* [PT Run] Use using directive instead of alias + updated method call for .Net 6

* [PT Run] Fixed missed using alias + spell check

src/modules/launcher/Wox.Plugin/Common/Win32/Win32Helpers.cs

@@ -0,0 +1,48 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Runtime.InteropServices;
+
+namespace Wox.Plugin.Common.Win32
+{
+    public static class Win32Helpers
+    {
+        /// <summary>
+        /// Detects the type of system firmware which is equal to the boot type by calling the method <see cref="NativeMethods.GetFirmwareType"/>.
+        /// </summary>
+        /// <returns>Firmware type like Uefi or Bios.</returns>
+        public static FirmwareType GetSystemFirmwareType()
+        {
+            FirmwareType firmwareType = default;
+            _ = NativeMethods.GetFirmwareType(ref firmwareType);
+            return firmwareType;
+        }
+
+        /// <summary>
+        /// Returns the last Win32 Error code thrown by a native method if enabled for this method.
+        /// </summary>
+        /// <returns>The error code as int value.</returns>
+        public static int GetLastError()
+        {
+            return Marshal.GetLastPInvokeError();
+        }
+
+        /// <summary>
+        /// Validate that the handle is not null and close it.
+        /// </summary>
+        /// <param name="handle">Handle to close.</param>
+        /// <returns>Zero if native method fails and nonzero if the native method succeeds.</returns>
+        public static bool CloseHandleIfNotNull(IntPtr handle)
+        {
+            if (handle == IntPtr.Zero)
+            {
+                // Return true if there is nothing to close.
+                return true;
+            }
+
+            return NativeMethods.CloseHandle(handle);
+        }
+    }
+}